The coupling constants \(g_{P_{cs}}\)  in Eq. REF  and Eq. REF  can be calculated by employing the compositeness
condition [1]}, [2]}, [3]}. This condition requires that the renormalization constant of the
hadronic molecular wave function is equal to zero
\(&1-\frac{d\Sigma _{P_{cs}}}{dk_0}\mid _{k_0=m_{P_{cs}}}=0, ~~~~~~~~~~j=\frac{1}{2}\\&1-\frac{d\Sigma _{P_{cs}}^T}{dk_0}\mid _{k_0=m_{P_{cs}}}=0, ~~~~~~~~~~j=\frac{3}{2}\) 
